For what it's worth, I auditioned 1m toslink and coax cables in a fairly hi-end system and could tell no difference.

I did the same and preferred the coax. My wife and I did blind tests with one of us listening to music, and the other switching the input (or not), and then listening again without knowing which cable was being used. We both consistently liked the coax sound more.

I'd recommend trying this exercise yourself and see what YOU like best.